Windmill



(No Model.) 4 Sheets-Sheet 1.

J. R. DESJARDINS.

WINDMILL.

No. 339,977. Patented Apr. 13, 1886.

INVENTOR -BY (la/14M Q WITNESSES I ATTORNEYS.

(No Model.) 4 Sheets-Sheet 2.

J. R. DESJARDINS.

WINDMILL.

No. 339,977. Patented Apr. 13, 1886.

WITNESSES j INVBNTOR M 7 7 BY MM- w c ATTORNEYS.

N. PETERS. PhMB-Lilhogmphsr. Wnshingwn. D. Q

(No Model.)

4 Sheets-Sheet 3. J. R. .DESJARDINS.-

WINDMILL. No. 339,977. Patented Apr. 13, 1886.

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ATTORNEYS.

N. PETERS. Pholn-Ullwgraphnr. Waihinglnn. n. c,

(No Model. 4 Sheets-Sheet 4.

J. R. DESJARDINS.

WINDMYILL.

Patented Apr. 13, 1886.

INVENTOR d i WITNESSES:

BYM/VMA/ ATTORNEYS.

N. Pzrzns. Phnlo-uihognphen Washington. a. c.

Uisrren STATES J ULES ROY DET DESJARDINS, OF BURLINGTON, VERMONT.

.WINDMlLL.

EPECIFICATION forming part of Letters Patent No. 339,977, dated April 13. 1886. Application filed August 19, 1884. Serial No. 140,939. (No model.)

To all whom it may concern:

Be it known that I, JULEs Rovnnr DEs- JARDINS, of Burlington, in the county of Chittenden and State of Vermont, have invented new and useful Improvements in \Vindmills, of which the following is a full, clear, and exact description.

My improvements relate to windmills of the type shown in Letters Patent granted to me May 27, 1879, No. 215,892.

The object of the invention is to provide a wheel of substantial and durable character that can be adjusted to the force of the wind and according to the power required, and when not in use can be arranged so that the fans offer no resistance to the wind.

A further object is to provide for checking the speed of the wheel automatically when the wind-pressure becomes excessive.

To these ends my invention consists in novel mechanism for adjusting the stops that regulate the position of the hinged fans or sails.

It consists, also, in brake mechanism fitted for operation by an independent vane for regulating the speed of the wheel 5 also in the construction of the tower for supporting the wheel, and in certain details of construction and arrangement, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification,

- in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation of the wheel and stand. Fig. 2 is a vertical section in the plane of the axis. Fig. 3 is a face view of the wheel with certain parts modified. Fig. 4 is a side view, partly sectional, of the wheel as mounted on a tower. Figs. 5 and 6 show modifications in the construction of the wheel.

The wheel is to be mounted either upon a portable frame, as shown in Figs. 1 and 2, or upon a tower, as shown in Fig. 4, when located permanently.

' The shaft A of the wheel is supported upon the upper cross-timbers, a, of the frame or tower, and the wheel is at the mid-length of the shaft, so as to rotate between the timbers a.

The construction of the wheel is as follows; The hub 12 has spokes or arms, carrying a ring, 0, and from the ring 0 radiate the arms d, that carry the fans or sails 6. On the ends of arms cl are flanged headsf, and the heads of the several arms are connected by tie-rods g, which are secured by nuts on their ends, so that they can be drawn tightly. This construction allows looseness at any one arm to be taken up. The fans are hung to arms d by hinges h at one edge, as shown in Fig. 1, or the hinges may be on the ends of the fans, as shown in Fig. 3, a short distance from the side, so that the fan projects at both sides of the arm, the projection at one side being about twice the width of the portion at the other side. The hinges h are of strap form, and are liveted to the fans at their opposite sides alternately.

The inclination of the fans by pressure of the wind is regulated by stops i, which are shown in Fig. l as carried by eyes 70, attached to ring 0 and to an inner ring, I, carried by the hub-spokes, whereby the stops are held in radial positions and are free to move endwise. They are held in their outward position by their inner ends resting on a ring, m, and in that position the outer ends of the stops are in front of'projections n on the fans, so as to prevent the fans from opening, except to a limited extent. The ring in is sustained on pins 0, projecting from ring I, and the pins carry spiral springs 1), that retain ring m outward. \Vhen the ring at is pressed inward, the stops can be moved toward the center of the wheel, thereby freeing their outer ends from the projections a on the fans, and the stops are held in this position by heads or lugs on their ends taking upon the innersurface of ring m. Upon pressing the ring at inward the heads of the pins will be disengaged therefrom, and as the wheel slowly revolves said pins will by their own weight be returned to their normal position. The ring will of course be thrown outward by its springs to its position beneath the lower heads of the pins t.

In Fig. 3 the stops t are pivoted to ring a, so as to swing in and out of contact with projections n on the fans, and their inner endsare connected to ring Z by screws passing through slots in the stops. There are two rings 1,

held to opposite sides of the spokes by connectingbolts from one ring to the other, and

the spokes have lugs holding the rings in place swing all the stops at once, and the lever engages a rack, q, attached to ring 0, so as to prevent accidental movement.

It is to be understood that as the fans swing both ways, according to the direction of the wind, the stops and other parts are placedon both sides of the wheel.

Upon one end of the wheel-shaft is a crankwheel, 1", to which a pitman may be connected, and the wheel is grooved for a wire rope when r 5 the power is to be conveyed in that manner. "On the opposite end of the shaft is a larger wheel, s, having a Vgrooved rim for a wire rope and beveled edges, and this wheel is provided with a side flange or rim, t, for connection of a belt.

Upon the frame, beneath wheel s, are hung two levers, u u, that carry at their upper ends brake-shoes v, shaped to clasp the beveled edges of wheel 8, and the lower ends of the 2 levers are connected by bars 10, which are jointed together so as to form toggle-bars. a is a lever, hung on the frame and extending over the toggles w, and also connected to the toggles. On this lever is a sliding weight, b,

' 0 which bears down the lever and toggles, so as tore'lease the brake-shoes from wheel 8. A

rod, 0, from the outer end of lever 01/, extends upward and connects to the arm of a vane, 11', that is hung on a post, 6, so as to swing in a vertical plane.

vane it is held nearly upright by the weight on lever to until the wind-pressure is sulficient' to overcome the weight and press the vane toward a horizontal position. This movement 0 of the vane raises the lever and presses the brakes against wheel 8 with more or less force,

thereby checking the speed of the wheel.

When the wind-pressure decreases, the vane rises and relieves the brake, and by these 5 combined movements the wheel is regulated to run at any desired speed.

I prefer to applya weight to the toggles w, as shown, for relieving the brakes from the wheel.

To hold the brake in contact when the wheel is not in use, I provide a pin, f, on post 6 in position to support the end of le- 'ver a when the latter is raised. 'When the wheel is mounted in a tower or a building,

5 5 there may be a rope connected to the brakelever and passing over a pulley and down into the building for use in applying the brakes.

As shown in Fig. 4, I provide a tower constructed specially in its upper portion for use with the wheel. On account of there being cross timbers or plates (1 on two sides of the tower the corner -posts h of the tower are braced by struts 9, extending from the crosstimbers i of the platform, so as to resist any tendency of the posts h to spread and insuring rigidity. The wheel may also be mount- In the normal position of the ed on two posts having braces extending to the ground.

The fans, wheel-center, arms, and other parts may be made of wood or other material. -When the wheel is made with awooden center, the construction is as shown in Fig. 5. The ring a is formed of wood clamped between iron plates, and the arms or standards d, which are made of tubing, passing through inner and outer surfaces of the ring, so that the arms are held perfectly rigid. 1 Fig.6 shows the brake-pulley 8 made of wood in the same manner. The wooden spokes are clamped between flanges on the tl'gwo hub-pieces that are held together by crossolts- Having thus described my invention, what I claim asnew, and desire to secure by Letters Patent, 15*- the hinged fans, of vertically-sliding stops at opposite sides thereof, laterally-moving rings m below the lower ends of said pins, horizontal pins supporting said rings, and spring 1) on the pins for pressing the rings outward, substantially as set. forth.

2. The combination, in a windwheel, of the hinged fans 6, the ring a, to which said fans are hinged, the inner rotatable rings, 1, within the ring 0, and connected by crossbars, the stops z, movably connected with the dle portions, the lever q, secured to one ringv l, and the rack q, secured to the ring 0 and adapted to engage the free end of said lever, the upper ends of the stops 6 extending on opposite sides of the lower ends of the said fans, substantially as set forth.

3. The combination, in a windwheel, of

which they'are secured, and the inner rotatable rings, eyes on said inner and outer rings, headed pins held by'said eyes, and the upper ends of the pins extending on opposite sides of the said fans, substantially as set forth.

4. The combination, in a wind wheel, of

rotatable rings, 1, and means for operating them, with the vertically-sliding pins connected tothe ringsl and c, and the laterallyadjustable rings m, on the peripheries of which the inner ends of the pins rest, the horizontal pins 0, on which said rings 1; are mounted, and the springs p for pressing the rings m outward, substantially as set forth.

5. The combination, with a wind-wheel and its shaft, of brake-wheel 8, having beveled edges and V- grooved rim, and'the" levers u,carrying brake-shoes 12, substantially as described.

, 6. The combination, with a wind-wheel and its shaft, of brake-wheel s, brake-levers u, toggle-bars w, and lever a', substantially a dc scribed, for operation as specified.

1. The combination, in a wind-wheel, with rings 0 and l at or near their lower and midthevertical hinged fans, the fixed ring to.

the wooden ring have clamping-nuts b at. the

the outer ring, 0', the hinged fans a, the inner 7. The combination,with awind-wheel, shaft and a brake-wheel thereon, of: a-brake- A; Li

shoe, a weighted lever connected with said and when the vane is vertical the weighted shoe forcing it away from said brake-wheel, a lever will withdraw the brake-shoe from the vertically-swinging vane, and a. rod connectbrake-wheel substantially as set forth.

ing the vane and lever below the pivoted point JULES ROYDET DESJARDINS. of the latter, whereby when the lever assumes a horizontal position itwill raise the lever and engage the brake-shoe with the brake-wheel,

Witnesses:

GEo. D. WALKER, 0. SEDGWIOK. 

